Wolf first appears in Wolf Brother as a cub whose family has died in a flood. Torak finds him shortly after his father has been killed by the demon bear. While the boy initially intends to kill and eat the cub, he's unable to do it. The cub takes a liking to "Tall Tailless" who can communicate with wolves, becoming not only his "pack-brother", but also his guide for the Mountain of the World Spirit. They also meet Renn whom Wolf dislikes initially, but accepts her in the later books as his "pack-sister". At the end of the book, he goes to live with the Mountain's wolf pack after the demon bear is destroyed due to being Torak's "heart's blood" he needs to sacrifice to the Mountain.